CN210359584U - Unequal belt back guiding reamer - Google Patents
Unequal belt back guiding reamer Download PDFInfo
- Publication number
- CN210359584U CN210359584U CN201921283209.8U CN201921283209U CN210359584U CN 210359584 U CN210359584 U CN 210359584U CN 201921283209 U CN201921283209 U CN 201921283209U CN 210359584 U CN210359584 U CN 210359584U
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- blade
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- cutter
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- 238000005520 cutting process Methods 0.000 claims abstract description 63
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 56
- 239000000956 alloy Substances 0.000 claims abstract description 56
- 238000005553 drilling Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 238000005496 tempering Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 16
- 230000008859 change Effects 0.000 abstract description 6
- 239000012634 fragment Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model provides a branch area back reamer varies belongs to cutting tool technical field, including the handle of a knife, establish the tool bit of handle of a knife one end, be equipped with sword fragment, changeover portion and alloy section on the tool bit in proper order, be equipped with six cutting edges that divide unequally on the outer circumference of first blade, be equipped with the alloy strip on the alloy section, first blade is the back taper structure on the tool bit, and the alloy section also is the back taper structure. The utility model provides a guide reamer behind unequal zone is convenient for change the cutting edge, can be to hole one shot forming, and the alloy section on the tool bit can protect long distance tool bit not receive spraining, has sufficient hardness, improves to hole processingquality, and the sweeps discharges in time, does not influence hole machining precision.
Description
Technical Field
The utility model belongs to the technical field of cutting tool, more specifically say, relate to a branch area back direction reamer that varies.
Background
In machining, a reamer is a common hole expanding or repairing tool, and is used for fine machining of holes. The existing reamer is generally composed of a cutter body and a working part, mainly used for semi-processing and finish machining of holes, the cutting allowance is small, when the holes with large cutting allowance are machined, the common solution is to replace other cutters for rough machining, then finish reaming is carried out by the reamer, the chips in the holes are required to be cleaned up by manpower after the holes are finished by the finish reaming, so that the machining quality of the holes is not influenced, and when the holes with deep machining depth are formed, the tool bit with long length is required to be used, the long tool bit is easy to deform or bend in the drilling process, the hardness is not high, the production efficiency is not high, and the machining precision is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a branch area back direction reamer varies to solve the great spot facing work of surplus that exists among the prior art, need often change the technical problem that cutter, tool bit hardness are low.
In order to achieve the above object, the utility model adopts the following technical scheme: the unequal-band rear guide reamer comprises a cutter handle and a cutter head arranged at one end of the cutter handle, wherein the cutter head is sequentially divided into a cutter segment, a transition segment and an alloy segment from the outer end to the inner end along the length direction of the cutter head; the cutter segment is provided with a first cutter blade, and the outer circumference of the first cutter blade is provided with six unequal cutting edges; alloy strips are arranged on the alloy sections along the length direction of the cutter head, and the alloy strips are used for enhancing the hardness of the cutter head;
the diameter of the outer end of the first blade is larger than that of the inner end of the first blade, and a taper b is formed, and the diameter of the alloy section close to the first blade is larger than that of the alloy section close to the cutter handle, and a taper c is formed;
a chip removal structure is arranged on the cutter head, and waste chips generated in the drilling process of the cutter head flow out by means of the chip removal structure;
the cutting edge includes a cutting tip and a plurality of cutting edges.
Furthermore, a second blade is further arranged on the alloy section, and six unequal cutting edges are arranged on the outer circumference of the second blade.
Furthermore, the alloy strip is long-strip-shaped, is fixedly connected to the surface of the cutter head and is arranged on the outer circumference in an unequal manner, and the chip removal structure and the alloy strip are arranged alternately.
Further, the length of the alloy strips is 100-120mm, and the number of the alloy strips is 6.
Furthermore, the chip removal structure is a strip-shaped groove, the inlet end of the strip-shaped groove is arranged at the front end of the cutter head, and the outlet end of the strip-shaped groove is arranged on the cutter handle.
Further, an included angle d between a vertical cutting edge of the cutting edge and a horizontal cutting edge of the cutting edge is 83-87 degrees, and an included angle e between a horizontal line where a cutting tip of the cutting edge is located and an outer side cutting edge of the cutting edge is 8-12 degrees.
Further, the tool shank comprises a clamping section connected with the cutting equipment and a chip removal section connected with the clamping section; the chip removal section with tool bit fixed connection, be equipped with the keyway on the centre gripping section, the external diameter of centre gripping section is greater than the external diameter of chip removal section.
Furthermore, a chamfer angle a of 75 degrees is arranged on the front end surface of the first blade.
Further, the first blade and the second blade are both made of hard alloy steel.
Further, the diameters of the first blade and the second blade are both 24-26mm, and the hardening and tempering hardness of the tool shank is HRC 40-45.
The utility model provides a guide reamer behind unequal area's beneficial effect lies in: compared with the prior art, the utility model discloses unequal zone back direction reamer, the blade sets up on the tool bit and can form back taper formula structure, be convenient for change the cutting edge, can be to hole one shot forming, long distance tool bit can be protected to the alloy section on the tool bit not sprained, sufficient hardness has, and is easy and simple to handle, and save time, and the hole precision after the processing is high, the steady quality, speed is also fast, the hole machining to the surplus is great has been solved, need often to change the cutter, tool bit hardness is low, the reduction efficiency, the handle of a knife is fixed unstably, the technical problem who influences hole processingquality, it is good to deep hole processingquality to have, tool bit hardness is high, be difficult for taking place to warp in the brill, can transmit enough big moment of torsion, the sweeps can be discharged, do not influence the technical effect of the.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of an unequal-band rear reamer according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A and line B-B of FIG. 1;
fig. 3 is a partial structure enlarged view of the first blade and the second blade in fig. 2.
Wherein, in the figures, the respective reference numerals: 1. a knife handle; 11. a clamping section; 12. a chip removal section; 2. a cutter head; 21. a blade segment; 22. a transition section; 23. an alloy section; 24. a first blade; 25. alloy strips; 26. a second blade; 3. a cutting edge; 4. chip removal structure.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3, an unequal band rear reamer according to an embodiment of the present invention will be described. The unequal belt rear guide reamer comprises a reamer handle 1 and a reamer head 2 arranged at one end of the reamer handle 1, and is sequentially divided into a cutter segment 21, a transition segment 22 and an alloy segment 23 from the outer end to the inner end along the length direction of the reamer head 2; a first blade 24 is arranged on the blade segment 21, and six cutting edges 3 which are not equally divided are arranged on the outer circumference of the first blade 24; alloy strips 25 are arranged on the alloy section 23 along the length direction of the tool bit 2, and the alloy strips 25 are used for enhancing the hardness of the tool bit 2; the six cutting edges 3 are unevenly distributed in the circumferential direction of the tool bit 2, the diameters of the transition sections 22 are respectively smaller than the diameter of the tool bit section 21 and the diameter of the alloy section 23, and the transition sections 22 play a role in buffering the tool bit 2 in the hole machining process. The alloy section 23 improves the hardness of the long tool bit 2, the tool bit 2 cannot deform and bend, and hole aligning machining quality is improved.
The diameter of the outer end of the first blade 24 is larger than that of the inner end of the first blade 24, a taper b is formed, the diameter of the alloy section 23 close to the first blade 24 is larger than that of the alloy section 23 close to the cutter handle 1, and a taper c is formed; the cutter segment 21 forms an inverted cone structure on the cutter head 2 and has the function of facilitating the replacement of a cutting edge and the disassembly of a cutter blade; the alloy section 23 forms an inverted cone structure on the cutter head 2, and then the alloy strip 25 is also in an inverted cone structure, so that the alloy strip 25 can be conveniently installed, or a second blade 26 can be installed on the alloy section 23, the second blade 26 is also in an inverted cone structure, and the function is convenient for replacing the cutting edge 3 and detaching the blade. The conicity value of the conicity b is 0.015, and the conicity value of the conicity c is 0.03. The conicity formed by the first blade 24 is different from the conicity value of the alloy section 23, the alloy strip 25 is not contacted with the hole in the machining process, and the first blade 24 is an execution part and is directly contacted with the pre-drilled hole.
A chip removal structure 4 is arranged on the tool bit 2, and waste chips generated in the drilling process of the tool bit flow out by means of the chip removal structure; the scraps produced in the drilling process are discharged along the scrap discharge structure, and the hole machining quality is not influenced.
The cutting edge 3 comprises a cutting tip and a plurality of cutting edges. The cutting edge 3 comprises a cutting tip and a plurality of cutting edges, the cutting tip is a tip part directly contacted with the hole, and the rest parts are the cutting edges. The cutting edge 3 is the main performing part during drilling and is the part that is in direct contact with the hole.
The embodiment of the utility model provides a guide reamer behind unequal zone, compared with the prior art, the blade sets up on tool bit 2 and can form back taper formula structure, be convenient for change cutting edge 3, can be to hole one shot forming, alloy section 23 on the tool bit 2 can protect long distance tool bit not sprained, sufficient hardness has, and is easy and simple to handle, and save time, and the hole precision after the processing is high, the steady quality, and is also fast, solved to the great spot facing work of surplus, need often change the cutter, tool bit 2 hardness is low, the reduction efficiency, handle of a knife 1 is fixed unstable, influence hole processingquality's technical problem, it is good to deep hole processingquality to have, tool bit 2 hardness is high, difficult emergence is out of shape in the brill, can transmit enough big moment of torsion, the sweeps can be discharged, do not influence the processingquality's of hole technical effect.
As a specific implementation manner of the unequal-band back guiding reamer provided by the embodiment of the present invention, please refer to fig. 1, a second blade 26 is further disposed on the alloy section 23, and six unequal cutting edges 3 are disposed on the outer circumference of the second blade 26. The second blade 26 is longer in length than the first blade 24. The second blade 26 is also provided with six unevenly arranged cutting edges 3, so that the second blade 26 and the first blade 24 simultaneously perform a cutting function during the drilling of the tool bit to complete hole machining, the diameter of the second blade 26 is the same as that of the first blade 24, the number of the arranged cutting edges 3 is the same, that is, the length of the second blade 26 is greater than that of the first blade 24 in the axial length of the tool bit 2.
As an embodiment of the utility model provides a guide reamer behind unequal zone please refer to fig. 1, alloy strip 25 is rectangular form, and fixed connection is in 2 surfaces of tool bit and become unequal setting on the periphery, chip removal structure 4 with alloy strip 25 sets up alternately. The length direction of the alloy strip 25 is parallel to the axial direction of the tool bit 2, the alloy strip 25 can improve the hardness of the tool bit 2, and the tool bit 2 is prevented from deforming or bending in the axial direction, so that the hole aligning processing quality can be guaranteed. The alloy strips 25 are arranged with the chip removal structure 4, that is, a chip removal structure is arranged between two adjacent alloy strips 25.
As a specific implementation manner of the unequal-band back reamer provided in the embodiment of the present invention, please refer to fig. 1, the length of the alloy strip 25 is 100-120mm, and the number is 6. One end of the alloy strip 25 is arranged on the blade section 21, and the other end is arranged on the alloy section 23, so that the whole tool bit 2 is fully distributed with the alloy strip, and the hardness of the tool bit 2 is improved.
As a specific implementation manner of the unequal-band back-guiding reamer provided by the embodiment of the present invention, please refer to fig. 1, the chip removal structure 4 is a strip-shaped groove, the entrance point of the strip-shaped groove is arranged at the front end of the tool bit 2, and the exit end is arranged on the tool holder 1. The sweeps that produce in the drilling process get into the entrance point of rectangular shape recess from the front end of tool bit 2 to discharge from the exit end, the sweeps can not exert an influence to the hole, improves to hole machining precision.
As a specific implementation manner of the unequal-band back reamer provided by the embodiment of the present invention, please refer to fig. 1 and 3, an included angle d between a vertical cutting edge of the cutting edge 3 and a horizontal cutting edge of the cutting edge 3 is 83 to 87 degrees, preferably 85 degrees; the angle e between the horizontal line of the cutting tip of the cutting edge 3 and the outer cutting edge of the cutting edge 3 is 8 to 12 °, preferably 10 °.
As a specific implementation manner of the unequal-band back reamer provided by the embodiment of the present invention, please refer to fig. 1, the handle 1 includes a clamping section 11 connected to the cutting device, and a chip removal section 12 connected to the clamping section 11; the chip removal section 12 with tool bit 2 fixed connection, be equipped with the keyway on the clamping section 11, the external diameter of clamping section 11 is greater than the external diameter of chip removal section 12. The chip removal section 12 is the position of the outlet end of the strip-shaped groove, the tool shank does not work in the drilling process, and the chips are discharged from the tool shank 1, so that the hole machining quality is improved.
Referring to fig. 1, a chamfer a with a size of 75 ° is provided on the front end surface of the first blade 24.
Referring to fig. 1, the first blade 24 and the second blade 26 are made of hard alloy steel.
As a specific implementation manner of the unequal-band back reamer provided by the embodiment of the present invention, please refer to fig. 1, the diameters of the first blade 24 and the second blade 26 are both 24-26mm, preferably 25mm, and the hardening and tempering hardness of the shank 1 is HRC 40-45.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Unequal back guiding reamer of taking, including the handle of a knife, establish the tool bit of handle of a knife one end, its characterized in that: the cutter head is sequentially divided into a cutter section, a transition section and an alloy section from the outer end to the inner end along the length direction of the cutter head; the cutter segment is provided with a first cutter blade, and the outer circumference of the first cutter blade is provided with six unequal cutting edges; alloy strips are arranged on the alloy sections along the length direction of the cutter head, and the alloy strips are used for enhancing the hardness of the cutter head;
the diameter of the outer end of the first blade is larger than that of the inner end of the first blade, and a taper b is formed, and the diameter of the alloy section close to the first blade is larger than that of the alloy section close to the cutter handle, and a taper c is formed;
a chip removal structure is arranged on the cutter head, and waste chips generated in the drilling process of the cutter head flow out by means of the chip removal structure;
the cutting edge includes a cutting tip and a plurality of cutting edges.
2. The unequal band back reamer of claim 1 wherein: the alloy section is also provided with a second blade, and the outer circumference of the second blade is provided with six unequal cutting edges.
3. The unequal band back reamer of claim 1 wherein: the alloy strip is in a long strip shape, is fixedly connected to the surface of the cutter head and is arranged on the outer circumference in unequal intervals, and the chip removal structure and the alloy strip are arranged alternately.
4. The unequal band back reamer of claim 1 wherein: the length of the alloy strip is 100-120mm, and the number of the alloy strips is 6.
5. The unequal band back reamer of claim 1 wherein: the chip removal structure is a strip-shaped groove, the inlet end of the strip-shaped groove is arranged at the front end of the cutter head, and the outlet end of the strip-shaped groove is arranged on the cutter handle.
6. The unequal strap back reamer of claim 2 wherein: the included angle d between the vertical cutting edge of the cutting edge and the horizontal cutting edge of the cutting edge is 83-87 degrees, and the included angle e between the horizontal line of the cutting tip of the cutting edge and the outer side cutting edge of the cutting edge is 8-12 degrees.
7. The unequal band back reamer of claim 1 wherein: the cutter handle comprises a clamping section connected with the cutting equipment and a chip removal section connected with the clamping section; the chip removal section with tool bit fixed connection, be equipped with the keyway on the centre gripping section, the external diameter of centre gripping section is greater than the external diameter of chip removal section.
8. The unequal band back reamer of claim 1 wherein: and a chamfer angle a of 75 degrees is arranged on the front end surface of the first blade.
9. The unequal strap back reamer of claim 2 wherein: the first blade and the second blade are both made of hard alloy steel.
10. The unequal strap back reamer of claim 2 wherein: the diameters of the first blade and the second blade are both 24-26mm, and the hardening and tempering hardness of the knife handle is HRC 40-45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283209.8U CN210359584U (en) | 2019-08-08 | 2019-08-08 | Unequal belt back guiding reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283209.8U CN210359584U (en) | 2019-08-08 | 2019-08-08 | Unequal belt back guiding reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210359584U true CN210359584U (en) | 2020-04-21 |
Family
ID=70249776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283209.8U Expired - Fee Related CN210359584U (en) | 2019-08-08 | 2019-08-08 | Unequal belt back guiding reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210359584U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658387A (en) * | 2020-12-29 | 2021-04-16 | 西安现代深孔技术有限公司 | Front positioning deep hole broaching reamer |
| CN116810391A (en) * | 2023-07-05 | 2023-09-29 | 东莞市同进刀具科技有限公司 | Milling reamer with guiding function |
-
2019
- 2019-08-08 CN CN201921283209.8U patent/CN210359584U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112658387A (en) * | 2020-12-29 | 2021-04-16 | 西安现代深孔技术有限公司 | Front positioning deep hole broaching reamer |
| CN116810391A (en) * | 2023-07-05 | 2023-09-29 | 东莞市同进刀具科技有限公司 | Milling reamer with guiding function |
| CN116810391B (en) * | 2023-07-05 | 2024-02-09 | 东莞市同进刀具科技有限公司 | Milling reamer with guiding function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200421 |
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| CF01 | Termination of patent right due to non-payment of annual fee |